$ cargo test
Compiling minigrep v0.1.0 (file:///projects/minigrep)
Finished test [unoptimized + debuginfo] target(s) in 0.97s
- Running unittests (target/debug/deps/minigrep-9cd200e5fac0fc94)
+ Running unittests src/lib.rs (target/debug/deps/minigrep-9cd200e5fac0fc94)
running 1 test
test tests::one_result ... FAILED